CN2891419Y - Earthing device of trolley-type breaker for high voltage switch cabinet - Google Patents
Earthing device of trolley-type breaker for high voltage switch cabinet Download PDFInfo
- Publication number
- CN2891419Y CN2891419Y CN 200620039884 CN200620039884U CN2891419Y CN 2891419 Y CN2891419 Y CN 2891419Y CN 200620039884 CN200620039884 CN 200620039884 CN 200620039884 U CN200620039884 U CN 200620039884U CN 2891419 Y CN2891419 Y CN 2891419Y
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- CN
- China
- Prior art keywords
- contact
- moving contact
- handcart
- switch cabinet
- circuit breaker
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to an earthing device of a handcart type circuit breaker in the high voltage switch cabinet, which is characterized in that the utility model comprises a moving contact and a fixed contact. The fixed contact formed as a rod-shaped contact is installed on the back wall of the handcart room by plinth and is connected with earthing lines, and the moving contact formed as a hollow cylinder is installed on the plinth which is arranged on a relevant position of the handcart provided with the circuit breaker. The grounding wire of the circuit breaker is connected to the moving contact's plinth, and the handcart can move along guideways of the handcart room in order to make the fixed contact and the moving contact connect and cooperate, thereby ensuring the circuit breaker the cooperation of the moving contact and the fixed contact, and the reliable earthing during the process of try state, running position and shifting in the high voltage switch cabinet. The utility model is reliably earthed with small contact resistances, which can meet the earthing requirement and is accurately located during the assembly.
Description
(1) technical field
The utility model relates to the earthing device of high-tension switch cabinet handcart type breaker.
(2) background technology
Element in the high-tension switch cabinet is answered reliable ground, and connects into an integral body with metal shell.For the high-tension switch cabinet handcart type breaker, because not having special earthing device, common earthing method is to install a copper bar in the appropriate location of bottom, handcart chamber with sunk screw, when handcart type breaker pushes, the earth point of circuit breaker contacts with copper bar, plays the effect of ground connection.The shortcoming of this method is that ground connection is unreliable, causes grounding resistance excessive owing to influences such as assembling and fit tolerances, or the grounding resistance change after long-term the use greatly, is difficult to satisfy the grounding requirement of high-tension switch cabinet.
(3) summary of the invention
The purpose of this utility model is to provide a kind of high-tension switch cabinet handcart type breaker earthing device, and this circuit interrupter grounding device ground connection is reliable, and contact resistance is little, accurate positioning during assembling.
The utility model is achieved in that a kind of high-tension switch cabinet handcart type breaker earthing device, it is characterized in that comprising moving contact and fixed contact, and fixed contact is shaft-like contact, and fixed contact is installed in handcart chamber rear wall by base and is connected with ground connection row; Moving contact is a hollow cylinder, moving contact is fixed on the moving contact base, and the moving contact base is contained in the dolly relevant position that circuit breaker is housed, and the earth connection of circuit breaker is connected on the moving contact base, dolly can move along the indoor guide rail of handcart, makes moving contact contact and cooperatively interact with fixed contact.
Above-mentioned high-tension switch cabinet handcart type breaker earthing device, the first end of described stationary contact has screw thread, and the fixed contact end of thread passes handcart chamber rear wall and ground connection row is fastenedly connected through nut.
Above-mentioned high-tension switch cabinet handcart type breaker earthing device, the hollow cylinder outer surface of described moving contact has groove, the built-in fastening spring of groove.
The utility model is that the plug technology of killer switch is applied on the earthing device, be about to the circuit interrupter grounding device and make the dynamic/static contact that a pair is similar to circuit breaker, fixed contact is made elongated rod shape be installed in handcart chamber rear wall, moving contact is installed on the circuit breaker dolly, and the earth connection on the circuit breaker is connected on the moving contact.During assembling, the dolly that circuit breaker is housed advances along the indoor guide rail of handcart, and the moving contact on the circuit breaker is combined with the fixed contact of fixing, and finishes the ground connection of circuit breaker.Therefore the utility model ground connection is reliable, and contact resistance is little, can satisfy grounding requirement, and accurate positioning during assembling.
(4) description of drawings
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Fig. 1 is a high-tension switch cabinet handcart type breaker earthing device structural representation when test position;
Fig. 2 is a high-tension switch cabinet handcart type breaker earthing device structural representation when run location.
Among the figure: 1 handcart car body, 2 moving contact bases, 3 moving contacts, 4 fastening springs, 5 fixed contacts, 6 fixed contact bases, 7 handcart chamber rear walls, 8 nuts, 9 ground connection copper bars.
(5) embodiment
Referring to Fig. 1, Fig. 2, a kind of high-tension switch cabinet handcart type breaker earthing device comprises moving contact 3 and fixed contact 5.Fixed contact 5 is shaft-like contact, and fixed contact 5 one ends have screw thread, and fixed contact 5 is installed in handcart chamber rear wall 7 by base 6, and fixed contact 5 ends of thread pass handcart chamber rear wall 7 and are fastenedly connected through copper nut 8 with ground connection copper bar 9.Moving contact 3 is a hollow cylinder, and the hollow cylinder outer surface has groove, and the built-in fastening spring 4 of groove makes when moving contact 3 contacts with fixed contact 5 flexiblely, contacts more reliable.Moving contact 3 is fixed on the moving contact base 2, and moving contact base 2 is contained in dolly 1 relevant position that circuit breaker is housed, and the earth connection of circuit breaker is connected on the moving contact base 2.Shaking handle can move the dolly 1 that circuit breaker is housed along the indoor guide rail of handcart, guaranteed that circuit breaker is in high-tension switch cabinet in test position, run location and the moving process, moving contact 3 contacts and cooperatively interacts with fixed contact 5, at test position and run location circuit breaker by reliable ground.
The utility model ground connection is reliable, and contact resistance is little, can satisfy grounding requirement, and the accurate positioning of when assembling.
Claims (3)
1. a high-tension switch cabinet handcart type breaker earthing device is characterized in that comprising moving contact and fixed contact, and fixed contact is shaft-like contact, and fixed contact is installed in handcart chamber rear wall by base and is connected with ground connection row; Moving contact is a hollow cylinder, moving contact is fixed on the moving contact base, and the moving contact base is contained in the dolly relevant position that circuit breaker is housed, and the earth connection of circuit breaker is connected on the moving contact base, dolly can move along the indoor guide rail of handcart, makes moving contact contact and cooperatively interact with fixed contact.
2. high-tension switch cabinet handcart type breaker earthing device according to claim 1 is characterized in that the first end of stationary contact has screw thread, and the fixed contact end of thread passes handcart chamber rear wall and ground connection row is fastenedly connected through nut.
3. high-tension switch cabinet handcart type breaker earthing device according to claim 1 is characterized in that the hollow cylinder outer surface of moving contact has groove, the built-in fastening spring of groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620039884 CN2891419Y (en) | 2006-03-02 | 2006-03-02 | Earthing device of trolley-type breaker for high voltage switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620039884 CN2891419Y (en) | 2006-03-02 | 2006-03-02 | Earthing device of trolley-type breaker for high voltage switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2891419Y true CN2891419Y (en) | 2007-04-18 |
Family
ID=38022080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620039884 Expired - Fee Related CN2891419Y (en) | 2006-03-02 | 2006-03-02 | Earthing device of trolley-type breaker for high voltage switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2891419Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102087934A (en) * | 2009-12-07 | 2011-06-08 | 河南省电力公司许昌供电公司 | Breaker bracket |
| CN102290729A (en) * | 2011-04-30 | 2011-12-21 | 山东泰开成套电器有限公司 | Novel handcart grounding device of switch cabinet |
| CN102751664A (en) * | 2012-06-29 | 2012-10-24 | 武汉华源电气设备有限责任公司 | Plug-in guide positioning grounding structure for circuit breaker handcart |
| CN105610076A (en) * | 2016-01-14 | 2016-05-25 | 国网福建省电力有限公司 | Novel grounding car for 10kV bus PT cabinet |
| CN112162123A (en) * | 2020-09-29 | 2021-01-01 | 贵州电网有限责任公司 | Experimental supplementary short-circuit connection instrument of cubical switchboard |
-
2006
- 2006-03-02 CN CN 200620039884 patent/CN2891419Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102087934A (en) * | 2009-12-07 | 2011-06-08 | 河南省电力公司许昌供电公司 | Breaker bracket |
| CN102290729A (en) * | 2011-04-30 | 2011-12-21 | 山东泰开成套电器有限公司 | Novel handcart grounding device of switch cabinet |
| CN102290729B (en) * | 2011-04-30 | 2013-09-25 | 山东泰开成套电器有限公司 | Handcart grounding device of switch cabinet |
| CN102751664A (en) * | 2012-06-29 | 2012-10-24 | 武汉华源电气设备有限责任公司 | Plug-in guide positioning grounding structure for circuit breaker handcart |
| CN102751664B (en) * | 2012-06-29 | 2015-08-05 | 武汉华源电气设备有限责任公司 | Circuit breaker cart plug-in type guide-localization ground structure |
| CN105610076A (en) * | 2016-01-14 | 2016-05-25 | 国网福建省电力有限公司 | Novel grounding car for 10kV bus PT cabinet |
| CN105610076B (en) * | 2016-01-14 | 2018-01-19 | 国网福建省电力有限公司 | New 10kV buses PT cabinet grounding trolleys |
| CN112162123A (en) * | 2020-09-29 | 2021-01-01 | 贵州电网有限责任公司 | Experimental supplementary short-circuit connection instrument of cubical switchboard |
| CN112162123B (en) * | 2020-09-29 | 2022-09-09 | 贵州电网有限责任公司 | Experimental supplementary shorting stub instrument of cubical switchboard |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070418 Termination date: 20120302 |